Earthquake with magnitude of ML 1.7 on date 11-06-2021 and time 11:46:15 (UTC) in region 4 km NW Rezzoaglio (GE)

A magnitude ML 1.7 earthquake occured in region: 4 km NW Rezzoaglio (GE), on

  • 11-06-2021 11:46:15 (UTC)
  • 11-06-2021 13:46:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5620, 9.3690 at 7 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Rezzoaglio GE 4 995 995
Fontanigorda GE 5 277 1272
Santo Stefano d'Aveto GE 7 1126 2398
Rovegno GE 7 554 2952
Ottone PC 7 516 3468
Gorreto GE 8 97 3565
Montebruno GE 10 240 3805
Fascia GE 11 81 3886
Rondanina GE 12 62 3948
Cerignale PC 13 127 4075
Zerba PC 13 77 4152
Ferriere PC 14 1294 5446
Propata GE 15 142 5588
Favale di Malvaro GE 15 466 6054
Borzonasca GE 16 2049 8103
Lorsica GE 16 468 8571
Carrega Ligure AL 17 84 8655
Corte Brugnatella PC 17 586 9241
Torriglia GE 17 2311 11552
Neirone GE 18 916 12468
Orero GE 19 565 13033
Mezzanego GE 20 1537 14570
Cicagna GE 20 2502 17072
Moconesi GE 20 2614 19686

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Genova (586655 inhabitants)
60 Km SW of Piacenza (102191 inhabitants)
62 Km NW of La Spezia (93959 inhabitants)
71 Km SE of Alessandria (93943 inhabitants)
71 Km S of Pavia (72576 inhabitants)
76 Km E of Savona (61345 inhabitants)
79 Km NW of Carrara (63133 inhabitants)
81 Km W of Parma (192836 inhabitants)
82 Km SW of Cremona (71901 inhabitants)
85 Km NW of Massa (69479 inhabitants)
93 Km SE of Vigevano (63310 inhabitants)
99 Km E of Asti (76202 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.7 2021-06-11
11:46:15
44.562 9.3692 7 2021-12-29
11:12:38
Bollettino Sismico Italiano INGV 96731341
Reviewed
Rev100
ML 1.8 2021-06-11
11:46:15
44.572 9.353 10 2021-06-11
11:53:14
Sala Sismica INGV-Roma 91089711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-11 11:46:15 ± 0.1
Latitude 44.5620 ± 0.0063
Longitude 9.3692 ± 0.0101
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96731341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 696
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.61783
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 96731341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-18 16:30:17

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 91089711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-11 11:53:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLMA.HHZ. 2021-06-11T11:46:37.20 0.6 undecidable manual S 146 68.5758 50 -0.44 43
GU.GRAM.HHE. 2021-06-11T11:46:34.30 0.6 undecidable manual S 98 55.5999 50 0.13 47
GU.PCP.HHN. 2021-06-11T11:46:28.53 0.3 undecidable manual P 268 65.1903 50 0.61 62
IV.PLMA.HHZ. 2021-06-11T11:46:28.32 0.3 undecidable manual P 146 68.5758 50 -0.14 69
GU.RNCA.HHE. 2021-06-11T11:46:27.60 0.6 undecidable manual S 253 34.5432 101 -0.52 45
IV.MSSA.HHZ. 2021-06-11T11:46:26.60 0.6 undecidable manual S 157 29.6481 103 0.14 49
GU.GRAM.HHE. 2021-06-11T11:46:26.65 0.6 undecidable manual P 98 55.5999 50 0.2 46
IV.BOB.HHZ. 2021-06-11T11:46:24.00 0.6 undecidable manual S 15 23.6541 106 -0.45 47
IV.MSSA.HHZ. 2021-06-11T11:46:22.12 0.1 undecidable manual P 157 29.6481 103 0.12 99
GU.RNCA.HHE. 2021-06-11T11:46:22.69 0.1 undecidable manual P 253 34.5432 101 -0.27 95
IV.BOB.HHZ. 2021-06-11T11:46:20.72 0.1 undecidable manual P 15 23.6541 106 -0.12 100
GU.GORR.HHZ. 2021-06-11T11:46:19.70 0.6 undecidable manual S 310 7.881 131 0.21 50
GU.GORR.HHZ. 2021-06-11T11:46:18.26 0.1 positive manual P 310 7.881 131 0.28 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GORR.HHE. ML:0.0 0.0014382785 0.1216 AML other m 2021-06-11T11:46:19.83
GU.GORR.HHN. ML:0.0 0.001330173 0.1216 AML other m 2021-06-11T11:46:20.22
IV.BOB.HHN. ML:0.0 0.0002363219 0.16 AML other m 2021-06-11T11:46:24.51
IV.BOB.HHE. ML:0.0 0.00046551145 0.1792 AML other m 2021-06-11T11:46:24.27
IV.MSSA.HHE. ML:0.0 0.0005296339 0.0768 AML other m 2021-06-11T11:46:27.64
IV.MSSA.HHN. ML:0.0 0.00046300405 0.1216 AML other m 2021-06-11T11:46:27.40
IV.PLMA.HHE. ML:0.0 0.0000286207 0.2368 AML other m 2021-06-11T11:46:40.45
IV.PLMA.HHN. ML:0.0 0.00003533691 0.1984 AML other m 2021-06-11T11:46:40.56
IV.BOB.HNE. ML:1.8 0.00040512020000000004 0.16 AML other m 2021-06-11T11:46:24.27
IV.BOB.HNN. ML:1.7 0.00030002495 0.2624 AML other m 2021-06-11T11:46:24.37
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download